CN102369369B - Electromagnetic inertia brake for a multiple-ratio power transmission - Google Patents

Electromagnetic inertia brake for a multiple-ratio power transmission Download PDF

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Publication number
CN102369369B
CN102369369B CN201080014732.6A CN201080014732A CN102369369B CN 102369369 B CN102369369 B CN 102369369B CN 201080014732 A CN201080014732 A CN 201080014732A CN 102369369 B CN102369369 B CN 102369369B
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CN
China
Prior art keywords
armature
brake
input shaft
reaction sheet
power input
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Fee Related
Application number
CN201080014732.6A
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Chinese (zh)
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CN102369369A (en
Inventor
M·J·豪伯里克
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Eaton Corp
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Eaton Corp
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Publication date
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Publication of CN102369369A publication Critical patent/CN102369369A/en
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Publication of CN102369369B publication Critical patent/CN102369369B/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
    • F16D55/00—Brakes with substantially-radial braking surfaces pressed together in axial direction, e.g. disc brakes
    • F16D55/24—Brakes with substantially-radial braking surfaces pressed together in axial direction, e.g. disc brakes with a plurality of axially-movable discs, lamellae, or pads, pressed from one side towards an axially-located member
    • F16D55/26—Brakes with substantially-radial braking surfaces pressed together in axial direction, e.g. disc brakes with a plurality of axially-movable discs, lamellae, or pads, pressed from one side towards an axially-located member without self-tightening action
    • F16D55/28—Brakes with only one rotating disc
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
    • F16D55/00—Brakes with substantially-radial braking surfaces pressed together in axial direction, e.g. disc brakes
    • F16D55/24—Brakes with substantially-radial braking surfaces pressed together in axial direction, e.g. disc brakes with a plurality of axially-movable discs, lamellae, or pads, pressed from one side towards an axially-located member
    • F16D55/26—Brakes with substantially-radial braking surfaces pressed together in axial direction, e.g. disc brakes with a plurality of axially-movable discs, lamellae, or pads, pressed from one side towards an axially-located member without self-tightening action
    • F16D55/36—Brakes with a plurality of rotating discs all lying side by side
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
    • F16D65/00—Parts or details
    • F16D65/14—Actuating mechanisms for brakes; Means for initiating operation at a predetermined position
    • F16D65/16—Actuating mechanisms for brakes; Means for initiating operation at a predetermined position arranged in or on the brake
    • F16D65/18—Actuating mechanisms for brakes; Means for initiating operation at a predetermined position arranged in or on the brake adapted for drawing members together, e.g. for disc brakes
    • F16D65/186—Actuating mechanisms for brakes; Means for initiating operation at a predetermined position arranged in or on the brake adapted for drawing members together, e.g. for disc brakes with full-face force-applying member, e.g. annular
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
    • F16D2121/00—Type of actuator operation force
    • F16D2121/18—Electric or magnetic
    • F16D2121/20—Electric or magnetic using electromagnets
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16H—GEARING
    • F16H3/00—Toothed gearings for conveying rotary motion with variable gear ratio or for reversing rotary motion
    • F16H3/02—Toothed gearings for conveying rotary motion with variable gear ratio or for reversing rotary motion without gears having orbital motion
    • F16H3/08—Toothed gearings for conveying rotary motion with variable gear ratio or for reversing rotary motion without gears having orbital motion exclusively or essentially with continuously meshing gears, that can be disengaged from their shafts
    • F16H3/12—Toothed gearings for conveying rotary motion with variable gear ratio or for reversing rotary motion without gears having orbital motion exclusively or essentially with continuously meshing gears, that can be disengaged from their shafts with means for synchronisation not incorporated in the clutches
    • F16H2003/123—Toothed gearings for conveying rotary motion with variable gear ratio or for reversing rotary motion without gears having orbital motion exclusively or essentially with continuously meshing gears, that can be disengaged from their shafts with means for synchronisation not incorporated in the clutches using a brake

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Braking Arrangements (AREA)

Abstract

An electromagnetic inertia brake for a vehicle transmission in a vehicle powertrain has a non-rotatable armature (30) and a brake reaction plate (26) in which a friction brake retarding force is developed on both sides of the brake reaction plate (26), the brake reaction plate (26) being secured to a transmission torque input shaft (18), whereby rotary elements of transmission gearing are braked during a transmission shift interval to improve shift quality.

Description

Electromagnet inertia break for many gear power transmission-gear boxes
Technical field
The present invention relates to the power speed changing draw box mechanism that band is useful on the clutch brake that overcomes inertia in shift process.
Background technique
For the typical dynamical system of road vehicle, comprise motor, keep off power transmission-gear box and for setting up and disconnecting the main clutch through the power path of gearbox from motor more.Gearbox shifting completes in vehicle driver disconnects the shift process of main clutch.For the torque input shaft of gearbox must be during gearbox shifting in deceleration, thereby the relative velocity of the gear transmission element on transmission of torque on the horizon path is roughly synchronous.Complete gearshift and improve the rate of deceleration that the required time of shift quality depends on gearbox power input shaft.Known PRACTICE OF DESIGN is to increase rate of deceleration by the inertia brake for power input shaft during shifting gears, thereby improves shift quality.
An example with the gearbox input shaft inertia brake of electromagnetic braking actuator is disclosed in US Patent No. 7000748.This patent is transferred to assignee of the present invention.Break comprises the armature of the fixed friction face frictionally engaging within on gear box, thereby when gearshift starts, the rotation of gearbox torque input shaft is slowed down.
Another example of electromagnet inertia break is disclosed in U.S. Patent Publication No. 2007/0095625, and this patent application is also transferred to assignee of the present invention.The disclosed armature hub of this patent application can be driven to be connected to gearbox power input shaft, for example, by spline or keyway, connect.Armature plate is installed to armature hub by elastic transmission sheet.When electromagnetic coil winding is energized, elastic transmission sheet allows the rubbing surface of armature frictional engagement gear box.The stopping power of the electromagnetic brake during this patent is open is decided by the friction torque producing in armature one side.
Summary of the invention
Inertia brake of the present invention can significantly increase the stopping power for the power input shaft of multi-gear gear-case.Different from the design in U.S. Patent Publication No. 2007/0095625, the armature of inertia brake of the present invention does not rotate with the power input shaft of gearbox.On the contrary, armature of the present invention is installed to gear box.Regulation allows armature along the axis of orientation of gearbox power input shaft to adjustment, but it is prevented from rotating relative to gear box.Armature can be biased in the axial direction, and this can make armature and gear box separate.Reaction sheet is between removable but non-rotatable armature and gear box.And reaction sheet is connected to reaction sheet hub.For example be in transmission connection spline or keyway is connected to gearbox power input shaft by hub.Rubbing surface on the annular friction face frictional engagement gear box of reaction sheet, and the removable but non-rotatable armature of another rubbing surface frictional engagement of reaction sheet.Two rubbing surface features have been improved stopping power.
According to a scheme of the present invention, non-rotatable armature and gear box interval, and reaction sheet is arranged in the space between gear box and armature.Electromagnetic coil winding is arranged in casing in the interface of reaction sheet and gear box.This coil winding produces flux field, and flux field produces clutch engaging force on armature.
In another embodiment of the present invention, casing has separated main tank body and odd-side body, and non-rotatable armature and reaction sheet are arranged between these chest portion.Coil winding is arranged in odd-side body.This is beneficial to repairing and the maintenance of break, without dismantling brake assembly completely.
According to another feature of the present invention, torque damping device is arranged between reaction sheet and power input shaft, to weaken or to alleviate the torque disturbances when using inertia brake.
Accompanying drawing explanation
The gearbox that Fig. 1 is typical heavy main clutch, have many gear gear drives with for engaging the schematic diagram with the clutch release bearing of separated main clutch.
Fig. 2 is the cross sectional view of the electromagnetic brake of the present invention seen of the cutting line 2-2 place plane from Fig. 2 a.
Fig. 2 a is the axial view of the electromagnetic brake seen from the left side of the gearbox shown in Fig. 1 signal.
Fig. 3 is the cross sectional view of the electromagnetic brake of the present invention that comprises damping spring seen from the cutting line 3-3 place plane of Fig. 3 a.
Fig. 3 a is the axial view of the electromagnetic brake of the present invention seen from the left side of the gearbox shown in Fig. 1.
Fig. 4 is the cross sectional view of electromagnetic brake of the present invention, and wherein electromagnetic coil is reorientated with respect to the coil position in Fig. 3.
Fig. 5 is the cross sectional view of the another embodiment of the present invention seen of the cutting line 5-5 place plane from Fig. 5 a.
Fig. 5 a is the axial view of the another embodiment of the present invention the Fig. 5 seeing from the left side of the gearbox shown in Fig. 1.
Fig. 6 is another embodiment of the present invention, wherein armature reaction sheet and the multiplate clutch assembly frictional engagement that is connected to gear box.
Embodiment
Fig. 1 schematically illustrates and comprises motor 10, have many gears power transmission-gear box 12 of many gear gear drives 14 and have the vehicle powertrain by the main clutch 16 of driver-operated clutch release bearing.Main clutch can and engage by vehicle driver's separation, to set up and to disconnect from motor 10 to gearbox power input shaft 18 and the machine power path of gearbox gear wheel transmission device 14.
Gearbox has power input shaft 18, and it can be driven and be connected to engine crankshaft by main clutch 16 use splines.
Transmission main shaft 20 is transported to speed changing box power output shaft by driving torque, and speed changing box power output shaft can be driven and is connected to traction wheel by live axle and differential mechanism-axle assembly.Can be referring to U.S. Patent Publication No. 2007/0095625, to obtain can be used on the explanation of the typical main clutch under this environment.
Fig. 2 is the cross sectional view of inertia brake of the present invention.The annular space with the 22 gear box portions that represent with the coil winding of receiving electromagnetic solenoid braking device coil 24.Annular reaction braking plate 26 is arranged in chest portion 22 near annular friction braking surface 28.Armature plate 30 is installed to chest portion 22 by a plurality of double-screw bolts 32, and these double-screw bolts extend through adding large opening and passing the perforate in annular cover plate 33 in armature plate 30.Around the sleeve 34 of bolt 32 as the separator between armature plate 30 and chest portion 22.Separator is produced calibration Separating force by helical spring 36 around, helical spring between chest portion 22 and armature plate 30.Therefore armature plate 30 is non-rotatable, but it can move axially.
The annular friction face 38 that reaction sheet 26 engages on non-rotatable armature plate.As shown in the figure, reaction sheet 26 is installed to internal spline hub 40, and internal spline hub is by spline joint to the output shaft of gear-box with spline, and output shaft is corresponding to the axle 18 in the structure of prior art shown in Fig. 1.Therefore reaction sheet 26 rotates together along with being positioned at the speed changing box power output shaft in the torque path downstream side of main clutch.
When coil 24 energising, armature plate is pulled to reaction sheet 26.By the friction torque on each ring surface of reaction sheet 26, be created in the retarding force on gearbox torque output shaft.This reality will double the opposing torque that can obtain in the inertia braking design of type described in U.S. Patent Publication No. 2007/0095625 and US Patent No. 700074.This increases the input shaft rate of deceleration in shift process by allowing, and this shortens the gearshift time.In the present invention's design, there is not the effect of inertia of the clutch of above-mentioned document shown type and the rotating mass of armature assembly.The rotating mass of inertia brake of the present invention is only the quality of the reaction sheet 26 of rotation.This feature also contributes to shorten to be carried out the required time of gearshift.
When electric coil assembly is by excitation or when energising, produce inertia brake retarding force.This produces ，Gai magnetic field, magnetic field and pulls the armature plate frictional engagement of non-rotatable armature and rotation and make armature plate and the rubbing surface frictional engagement of chest portion 22.
Fig. 3 discloses a kind of improvement design, and wherein, chest portion 42 is corresponding to the chest portion 22 in Fig. 2.Non-rotatable armature 44 is positioned at a side of the reaction sheet 46 of rotation.Reaction sheet 46 is arranged between the annular friction face and the annular friction face in chest portion 42 of armature 44.The reaction sheet 46 frictional engagement armatures 44 that rotate and the ring surface of chest portion 42.Reaction sheet 46 is connected to reaction sheet hub 48 by damping spring 50, and these springs tangentially configure and arrange around hub 48 axis intervals with respect to the central axis of brake assembly.This elasticity of having set up between gearbox power input shaft and reaction sheet 46 connects, and this has reduced the torque ripple when inertia brake engages.
Armature 44 is installed to chest portion 42 by having the support 52 of side face, and this side face is fixed to the outer circumferential face of chest portion 42.The side face of armature 44 for example can be driven and be connected to slidably the outer circumferential face of support 52 by interlocking spline piece.This connection allows armature 44 to move along the axial direction of inertia brake, although the rotation motion of armature plate 44 is prevented from.When by excitation, electric coil assembly generates an electromagnetic field, and this electromagnetic field pulls armature plate 44 to stride across air gap.
Fig. 4 illustrates another and improves design, and wherein, the electromagnetic coil of electromagnetic brake has different arrangements.Chest portion 54 in Fig. 4 comprises the ring-shaped article with annular opening, this annular opening receiving electromagnetic coil 24 '.Chest portion 54 is connected to chest portion 58 by support 60.Non-rotatable armature 62 is between chest portion 54 and chest portion 58.Armature 62 is connected with support 60 by being labeled as 64 keyway or spline in outside, to allow armature axial motion, prevents that armature 62 from rotating relative to chest portion 54 and 58 simultaneously.Reaction sheet 56 is arranged between armature 62 and chest portion 54.On any or two annular friction faces of armature reaction sheet 56, can be provided with friction material.
Assembly shown in Fig. 4 can be installed to gear box by construction bolt or the double-screw bolt of that bearing abutment wall seen in the gearbox shown in Fig. 1, represent with mark 65 or bearing cap supporting.
Fig. 5 and Fig. 5 a illustrate the modification of the inertia brake design shown in Fig. 4.Different from the inertia brake in Fig. 4, a plurality of magnetic clutch coil winding of the chest portion 54 shown in Fig. 5 ' have.In Fig. 5, can see a pair of coil winding 66 and 68, in Fig. 5 a, can see that another is to coil winding 70 and 72.Also can use the coil winding of varying number.As the situation in design shown in Fig. 4, electromagnetic coil winding generates an electromagnetic field, this electromagnetic field by non-rotatable armature 62 ' pull to chest portion 54 '.This produces friction torque on the rubbing surface that rotates reaction sheet, these rubbing surfaces engage armatures 62 ' and chest portion 54 ' rubbing surface.
The reference character of a plurality of elements of the electromagnetic brake in Fig. 5 is corresponding to the reference character of the respective element designing in Fig. 4, although the reference character in Fig. 5 has added apostrophe.
Fig. 6 illustrates an alternative embodiment of the invention.Chest portion 74 has support 76, and it is installed to chest portion 74 on donought body 78.Chest portion 78 has circular chamber or opening to receive the coil winding 80 of electromagnetic brake.Annular armature 82 rotatably and is not slidably installed to chest portion 78 by bindiny mechanism as construction bolt or double-screw bolt 77.Annular armature 82 engages multiplate clutch assemblies 84, it comprise multichip connection arrive the external splines disk body 86 of rotation reaction sheet 85 and multi-disc with spline joint the internal spline disk body 88 to chest portion 78.When electromagnetic coil winding is switched on, the armature 82 that is slidably connected to chest portion 78 by double-screw bolt 77 engages friction disk, thereby hub 90 is slowed down, and this hub is installed to gearbox power input shaft by spline or alternate manner.This design in Fig. 6 can provide the stopping power of increase, because brake assembly 84 provides a plurality of rubbing surfaces.
Although described embodiments of the invention, for a person skilled in the art, obviously can in the situation that not exceeding the scope of the invention, make modification.All such modifications and be equal to all and should be contained by follow-up claims.

Claims (8)

1. an electromagnet inertia break, for slow down the speed of the power input shaft of the multi-gear gear-case in the dynamical system of motor vehicle at shift process, this inertia brake comprises:
Be arranged at least one the electromagnetic brake coil in the casing of this gearbox, this brake coil and this power input shaft radially separate;
Around the electromagnetic brake armature of this power input shaft, this armature is installed to this casing by connector, to stop this armature to rotate, and allows this armature (30) axial motion; With
Can drive the reaction sheet that is connected to this power input shaft, this reaction sheet is arranged between this electromagnetic brake armature and this casing;
When this brake coil is energized, this armature applies clutch friction engaging force on this reaction sheet thus, thereby on this power input shaft, produces rotation brake torque in gearbox shifting interim;
By a plurality of brake discs of this reaction sheet and the carrying of this casing, wherein at least one brake disc is connected to this reaction sheet by external splines, and at least one other brake disc is connected to this casing by internal spline;
This reaction sheet has rubbing surface in its each side, this armature of side frictional engagement, and the rubbing surface on this casing of opposite side frictional engagement,
Thereby in each side of this reaction sheet and described brake disc, produce the rotation brake torque that acts on this power input shaft (18).
2. electromagnet inertia break according to claim 1, is characterized in that, this reaction sheet comprise be installed to the hub of this power input shaft and be arranged in this armature and this casing between annular disk portion, this hub can be driven to be connected to this power input shaft.
3. electromagnet inertia break according to claim 2, it is characterized in that, this reaction sheet comprises the torque damping element between this reaction sheet hub and this annular disk portion, thereby when this inertia brake of application, the torque ripple in this inertia brake is weakened.
4. electromagnet inertia break according to claim 1, is characterized in that, this casing comprises axially spaced the first and second chest portion, and this armature is arranged between described chest portion and is installed to described chest portion;
Bindiny mechanism between this armature and the first chest portion, it allows this armature axial motion, and stops this armature to rotate around this power input shaft;
When this brake coil is energized, along with the air gap between this armature and this second chest portion is opened, this reaction sheet is by this armature and this first chest portion frictional engagement.
5. electromagnet inertia break according to claim 4, is characterized in that, a chest portion in described the first and second chest portion is carried at least one electromagnetic brake coil.
6. electromagnet inertia break according to claim 4, is characterized in that, a chest portion in described the first and second chest portion is equipped with around the isolated a plurality of brake coils of this power input shaft.
7. electromagnet inertia break according to claim 5, it is characterized in that, described at least one electromagnetic brake coil and described the first chest portion are suitable for separating with this second chest portion, and described electromagnetic brake coil can be removed so that maintenance operation from this second chest portion thus.
8. an electromagnet inertia break, for slow down the speed of the power input shaft of the multi-gear gear-case in the dynamical system of motor vehicle at shift process, this inertia brake comprises:
Be arranged at least one the electromagnetic brake coil in the casing of gearbox, this at least one brake coil and this power input shaft radially separate;
Can drive the reaction sheet that is connected to this power input shaft;
Non-rotatable armature near described brake coil and described reaction sheet; With
The multiplate clutch assembly with a plurality of panel surface that are connected to described reaction sheet, this multiplate clutch assembly comprises at least a slice outer spline disc body that is connected to this reaction sheet and at least a slice internal spline disk body that arrives this casing with spline joint,
Wherein when described at least one brake coil is energized, this armature vertically mobile clutch friction engaging force that applies arrives described multiplate clutch assembly, thereby at least two panel surface that make this multiplate clutch assembly engage this casing to produce and to apply rotation brake torque to this reaction sheet, and this reaction sheet slows down the speed of this power input shaft thus in shift process.
CN201080014732.6A 2009-03-27 2010-03-26 Electromagnetic inertia brake for a multiple-ratio power transmission Expired - Fee Related CN102369369B (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US12/412405 2009-03-27
US12/412,405 US8397893B2 (en) 2009-03-27 2009-03-27 Electromagnetic inertia brake for a multiple-ratio power transmission
PCT/IB2010/000688 WO2010109319A1 (en) 2009-03-27 2010-03-26 Electromagnetic inertia brake for a multiple-ratio power transmission

Related Child Applications (1)

Application Number Title Priority Date Filing Date
CN201410013630.2A Division CN103711818A (en) 2009-03-27 2010-03-26 Electromagnetic inertia brake for a multiple-ratio power transmission

Publications (2)

Publication Number Publication Date
CN102369369A CN102369369A (en) 2012-03-07
CN102369369B true CN102369369B (en) 2014-02-19

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CN201080014732.6A Expired - Fee Related CN102369369B (en) 2009-03-27 2010-03-26 Electromagnetic inertia brake for a multiple-ratio power transmission
CN201410013630.2A Pending CN103711818A (en) 2009-03-27 2010-03-26 Electromagnetic inertia brake for a multiple-ratio power transmission

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US (1) US8397893B2 (en)
CN (2) CN102369369B (en)
BR (1) BRPI1007090A2 (en)
DE (1) DE112010001386B4 (en)
WO (1) WO2010109319A1 (en)

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CN104535342B (en) * 2014-12-18 2017-06-06 西南交通大学 The brake oil testing stand of brake disc of high-speed train
CN109962570B (en) * 2019-05-13 2024-07-02 常州高尔登科技有限公司 Motor of scooter

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Publication number Publication date
US8397893B2 (en) 2013-03-19
CN102369369A (en) 2012-03-07
DE112010001386B4 (en) 2014-11-27
WO2010109319A1 (en) 2010-09-30
BRPI1007090A2 (en) 2019-09-24
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DE112010001386T5 (en) 2012-08-02
US20100243403A1 (en) 2010-09-30

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